From Eric Kvaalen
The idea that global greenhouse emissions contributed to the Syrian civil war may be true,
but this is quite a minor factor (7 March, p 6). A more important factor is the quadrupling of the Syrian population since 1960. With a population explosion like this, the country was bound to reach a point where agriculture was insufficient and unemployment would rise, even without global warming.
Les Essarts-le-Roi, France
